mirror of
https://github.com/KhronosGroup/SPIRV-Tools
synced 2024-11-30 23:10:05 +00:00
85c67b5e08
There is nothing in the spir-v spec that says the last instructions in a module cannot be OpLine or OpNoLine. However, the code that parses the module will simply drop these instructions. We add code that will preserve these instructions. Strip-debug-info is updated to remove these instructions. Fixes https://crbug.com/1000689.
58 lines
2.1 KiB
C++
58 lines
2.1 KiB
C++
// Copyright (c) 2016 Google Inc.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "source/opt/strip_debug_info_pass.h"
|
|
#include "source/opt/ir_context.h"
|
|
|
|
namespace spvtools {
|
|
namespace opt {
|
|
|
|
Pass::Status StripDebugInfoPass::Process() {
|
|
bool modified = !context()->debugs1().empty() ||
|
|
!context()->debugs2().empty() ||
|
|
!context()->debugs3().empty();
|
|
|
|
std::vector<Instruction*> to_kill;
|
|
for (auto& dbg : context()->debugs1()) to_kill.push_back(&dbg);
|
|
for (auto& dbg : context()->debugs2()) to_kill.push_back(&dbg);
|
|
for (auto& dbg : context()->debugs3()) to_kill.push_back(&dbg);
|
|
|
|
// OpName must come first, since they may refer to other debug instructions.
|
|
// If they are after the instructions that refer to, then they will be killed
|
|
// when that instruction is killed, which will lead to a double kill.
|
|
std::sort(to_kill.begin(), to_kill.end(),
|
|
[](Instruction* lhs, Instruction* rhs) -> bool {
|
|
if (lhs->opcode() == SpvOpName && rhs->opcode() != SpvOpName)
|
|
return true;
|
|
return false;
|
|
});
|
|
|
|
for (auto* inst : to_kill) context()->KillInst(inst);
|
|
|
|
context()->module()->ForEachInst([&modified](Instruction* inst) {
|
|
modified |= !inst->dbg_line_insts().empty();
|
|
inst->dbg_line_insts().clear();
|
|
});
|
|
|
|
if (!get_module()->trailing_dbg_line_info().empty()) {
|
|
modified = true;
|
|
get_module()->trailing_dbg_line_info().clear();
|
|
}
|
|
|
|
return modified ? Status::SuccessWithChange : Status::SuccessWithoutChange;
|
|
}
|
|
|
|
} // namespace opt
|
|
} // namespace spvtools
|